Service bulletin 22-01-076H

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
Type	Service bulletin
NHTSA id	10222083
Published by NHTSA	2022-09-27
Manufacturer's number	22-01-076H
Manufacturer's date	2022-09-20
NHTSA component	POWER TRAIN

NHTSA's summary

Some 2021 ~ 2022MY Elantra (CN7, CN7a, CN7 HEV) vehicles may exhibit a condition with multiple warning lights displayed on the instrument cluster and various symptoms; multiple DTCs (Diagnostic Trouble Code), reduction in power steering assist, and not able to shift out of Park. Possible DTCs set are: C181287 – CAN Time-out Gateway, C181208 – CAN Time-out Gateway, C180581 – LKAS CAN Signal Error, C181887 – CAN Time-out BCA, B109052 – TCU Missing Error This bulletin provides the service procedure to update the ICU (Integrated Central Control Unit) software to resolve the conditions stated above.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Transmission and driveline

Trouble codes named

B1090, C1805, C1812, C1818

Vehicles listed
HYUNDAI ELANTRA	2021, 2022
HYUNDAI ELANTRA HYBRID	2021, 2022 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
2023468	2023-08-18. Powertrain
2022568	2022-10-06. Powertrain

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
23-AT-013H	2023-09-06. Service bulletin. This bulletin provides information related to a Transmission Control Unit (TCU) software update for certain vehicles equipped with an 8-speed wet dual clutch transmissions (8WDCT) that improves the touch point learning variation. Certain 8WDCTs (indicated by a new part number) received an improved clutch spring. The correct TCU software update must be matched with the correct corresponding 8WDCT hardware, otherwise drivability concerns may occur.
23-AT-010H	2023-09-06. Service bulletin. Certain vehicles equipped with the Intelligent Variable Transmission (IVT) may experience a check engine light or malfunction indicator light due to Diagnostic Trouble Codes (DTC) listed below. This bulletin provides information on replacing the oil pressure sensor to remedy these DTCs, rather than replacing the entire IVT assembly.
23-01-014H-5	2023-09-06. Service bulletin. Hyundai has launched an anti-theft software upgrade and window decal campaign (Campaign 993), combined with an anti-theft steering wheel lock campaign (Campaign P32), in response to an increase in thefts of certain 2011-2022MY Hyundai vehicles not equipped with engine immobilizers targeted through social media. For certain vehicles that cannot be updated with the software (Campaign 993), Hyundai is offering customers steering wheel locks at the dealer (Campaign P32). This Dealer Best Practices Guide provides information to assist dealership personnel with customer questions relating to the immobilizer software upgrade, window decals and steering wheel lock ant-theft solutions available from HMA through Hyundai dealers.
23-01-006H	2023-04-04. Service bulletin. This bulletin provides the service procedure to update the Transmission Control Unit (TCU) software for certain Elantra (CN7/CN7a) vehicles equipped with the 2.0L MPI and Intelligent Variable Transmission (IVT). This update to the damper clutch logic is to address a potential engine stall condition immediately following Forward Collision Avoidance (FCA) activation under specific operating conditions at low engine RPM and low vehicle speeds. In the event a low-speed stall does occur, the engine can immediately be restarted.
23-01-006H	2023-04-04. Service bulletin. Certain Elantra (CN7/CN7a) vehicles equipped with the 2.0L MPI and Intelligent Variable Transmission (IVT) need an update to the damper clutch logic to address a potential engine stall condition immediately following Forward Collision Avoidance (FCA) activation under specific operating conditions at low engine RPM and low vehicle speeds. In the event a low-speed stall does occur, the engine can immediately be restarted.
22-01-041H-1	2022-12-22. Service bulletin. This bulletin provides information related to a Modular Clutch Actuator (MCA) compliance software update for P17D249, a permanent DTC that cannot be cleared with the CARB drive cycle. The software update allows the MCA to send the appropriate diagnostics status to the Hybrid Power Control Unit (HPCU) so the DTC can be cleared when the CARB drive cycle has been met. Certain vehicles may experience a check engine light.
22-01-041H-1	2022-12-22. Service bulletin. A compliance software update is needed for DTC P17D249, a permanent DTC that affects the MCA (Modular Clutch Actuator). The software update allows the MCA to send the appropriate diagnostics status to the HPCU (Hybrid Power Control Unit) so the DTC can be cleared when the CARB drive cycle has been met. Certain vehicles may experience a check engine light.
22-01-041H	2022-12-07. Service bulletin. A compliance software update is needed for DTC P17D249, a permanent DTC that affects the MCA (Modular Clutch Actuator). The software update allows the MCA to send the appropriate diagnostics status to the HPCU (Hybrid Power Control Unit) so the DTC can be cleared when the CARB drive cycle has been met. Certain vehicles may experience a check engine light.
22-01-041H	2022-12-07. Service bulletin. This bulletin provides information related to a Modular Clutch Actuator (MCA) compliance software update for P17D249, a permanent DTC that cannot be cleared with the CARB drive cycle. The software update allows the MCA to send the appropriate diagnostics status to the Hybrid Power Control Unit (HPCU) so the DTC can be cleared when the CARB drive cycle has been met. Certain vehicles may experience a check engine light.
22-AT-009H	2022-08-05. Service bulletin. If you are servicing an applicable vehicle with a “Check Engine” light on and one or more of the DTC listed on Page 2, follow the repair procedure and perform the diagnosis. If necessary, replace the High Flow electric oil pump (HF EOP) for HF EOP issues or the Dual Clutch Transmission for High Pressure electric oil pump (HP EOP) issues.